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<?php
/*
 * This file is part of the Akeneo PIM Enterprise Edition.
 *
 * (c) 2017 Akeneo SAS (http://www.akeneo.com)
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Akeneo\Pim\Permission\Component\Filter;
use Akeneo\Pim\Enrichment\Component\Product\Model\EntityWithAssociationsInterface;
use Akeneo\Pim\Enrichment\Component\Product\Model\ProductInterface;
use Akeneo\Pim\Permission\Bundle\Entity\Query\ItemCategoryAccessQuery;
use Akeneo\Pim\Permission\Bundle\Entity\Repository\CategoryAccessRepository;
use Akeneo\Pim\Permission\Component\NotGrantedDataFilterInterface;
use Akeneo\Tool\Component\StorageUtils\Exception\InvalidObjectException;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Util\ClassUtils;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;
/**
 * Filter not granted associated product from product
 *
 * @author Marie Bochu <marie.bochu@akeneo.com>
 */
class NotGrantedAssociatedProductFilter implements NotGrantedDataFilterInterface
{
    /** @var AuthorizationCheckerInterface */
    private $authorizationChecker;
    /** @var CategoryAccessRepository */
    private $productCategoryAccessQuery;
    /** @var CategoryAccessRepository */
    private $productModelCategoryAccessQuery;
    /** @var TokenStorageInterface */
    private $tokenStorage;
    /**
     * @param AuthorizationCheckerInterface $authorizationChecker
     * @param ItemCategoryAccessQuery       $productCategoryAccessQuery
     * @param ItemCategoryAccessQuery       $productModelCategoryAccessQuery
     * @param TokenStorageInterface         $tokenStorage
     */
    public function __construct(
        AuthorizationCheckerInterface $authorizationChecker,
        ItemCategoryAccessQuery $productCategoryAccessQuery,
        ItemCategoryAccessQuery $productModelCategoryAccessQuery,
        TokenStorageInterface $tokenStorage
    ) {
        $this->authorizationChecker = $authorizationChecker;
        $this->productCategoryAccessQuery = $productCategoryAccessQuery;
        $this->productModelCategoryAccessQuery = $productModelCategoryAccessQuery;
        $this->tokenStorage = $tokenStorage;
    }
    /**
     * {@inheritdoc}
     */
    public function filter($entityWithAssociations)
    {
        if (!$entityWithAssociations instanceof EntityWithAssociationsInterface) {
            throw InvalidObjectException::objectExpected(
                ClassUtils::getClass($entityWithAssociations),
                ProductInterface::class
            );
        }
        $entityWithAssociations->getAssociations();
        $filteredEntityWithAssociations = clone $entityWithAssociations;
        $clonedAssociations = new ArrayCollection();
        if (null !== $this->tokenStorage) {
            $user = $this->tokenStorage->getToken()->getUser();
        }
        foreach ($filteredEntityWithAssociations->getAssociations() as $association) {
            $clonedAssociation = clone $association;
            $associatedProducts = clone $clonedAssociation->getProducts();
            $associatedProductModels = clone $clonedAssociation->getProductModels();
            $grantedProductIds = $this->productCategoryAccessQuery->getGrantedItemIds($associatedProducts->toArray(), $user);
            foreach ($associatedProducts as $associatedProduct) {
                if (!isset($grantedProductIds[$associatedProduct->getId()])) {
                    $associatedProducts->removeElement($associatedProduct);
                }
            }
            $grantedProductModelIds = $this->productModelCategoryAccessQuery->getGrantedItemIds($associatedProductModels->toArray(), $user);
            foreach ($associatedProductModels as $associatedProductModel) {
                if (!isset($grantedProductModelIds[$associatedProductModel->getId()])) {
                    $associatedProductModels->removeElement($associatedProductModel);
                }
            }
            $clonedAssociation->setProducts($associatedProducts);
            $clonedAssociation->setProductModels($associatedProductModels);
            $clonedAssociations->add($clonedAssociation);
        }
        $filteredEntityWithAssociations->setAssociations($clonedAssociations);
        return $filteredEntityWithAssociations;
    }
}